Method for repairing crack of outer wall

Abstract

The invention discloses a method for repairing cracks of an outer wall, which comprises the following steps of: (1) concreting a wall body: scraping two sides of a crack of the wall body into grooves, cleaning up, injecting water-proof sealant, brushing advanced outer wall putty twice, and then brushing paint; and (2) bricking the wall body: filling brickwork joint crack with water-proof adhesive mixing with cement, and then spraying with colorless advanced waterproofing agent after 8 hours. Through concreting and bricking the wall body, the crack of the wall body can be firmly maintained, no water is stored or accumulated in the wall body, and the leakage is not easy to occur.

Description

Background technique [0001] The wall is a vertical component of building physics. Generally, there is no water storage, no water accumulation, and no leakage. However, factors such as rough construction, improper selection of materials or inferior materials, improper use by users or poor management will cause cracks in the wall and cause leakage. [0002] The main reason for the cracks in the wall is that on the one hand, there are cracks in the wall masonry, the strength level of the masonry mortar is low, the type of mortar is used improperly, and the mixed mortar masonry with a poor mix ratio reduces the strength, poor masonry integrity, and is easy to pass through. Early weathering and looseness; during the construction of the wall, the mortar is not dense and full, or the joints, empty joints, and blind joints caused by the wrong masonry method cause cracks; there are scaffolding holes, wall pipe holes, The supporting part of the hook is not sealed tightly, causing hidde...

AI Technical Summary

Problems solved by technology

However, factors such as rough construction, improper selection of materials or inferior materials, improper use by users or poor management will cause cracks in the wall and cause leakage.

[0002] The main reason for the cracks in the wall is that on the one hand, there are cracks in the wall masonry, the strength level of the masonry mortar is low, the type of mortar is used improperly, and the mixed mortar masonry with a poor mix ratio reduces the strength, poor masonry integrity, and is easy to pass through. Early weathering and looseness; during the construction of the wall, the mortar is not dense and full, or the joints, empty joints, and blind joints caused by the wrong masonry method cause cracks; there are scaffolding holes, wall pipe holes, The supporting part of the hook is not sealed tightly, causing hidden dangers

On the other hand, there are cracks in the concrete wall, the strength of the cast-in-place wallboard is not enough when pouring, the surface of the board has honeycomb pitting, crisping, and the holes left in the wall during construction, the holes of the scaffolding are not filled or the strength of the filling material is not strong enough to cause seepage. Leakage; cracks caused by structural deformation, uneven foundation settlement, excessive distance between transverse walls, no reinforcement at the corner stress concentration of the wall, excessive openings of doors and windows, improper setting of deformation joints, etc. Structural deformation cracks caused by insufficient resistance